– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 10 pm Sat 01 Aug Local TimeUpdates in: hr min sUpdate imminent
Issued: 10 pm Sat 01 Aug Local Time
Updates in:
Update imminent hr min s
Issued: 10 pm Sat 01 Aug Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–4 Weather SummaryLight rain (total 6mm), mostly falling on Sun afternoon. Warm (max 27°C on Tue afternoon, min 10°C on Sat night). Wind will be generally light. | Days 5–7 Weather SummaryMostly dry. Warm (max 29°C on Wed afternoon, min 19°C on Tue night). Wind will be generally light. | ||||||||||||||||||
Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | ||||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | | |  |  | | | | | | | | | | | | | | | |
rain shwrs | rain shwrs | rain shwrs | clear | clear | clear | clear | clear | clear | clear | clear | clear | clear | clear | clear | clear | clear | clear | clear | |
Cloud base (m) | 2050 | 950 | 800 | 9500 | 9100 | 9100 | 9550 | ||||||||||||
km/h | |||||||||||||||||||
 |  |  |  |  |  |  | |||||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | 1.1 | 1.3 | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
max °C | 12 | 12 | 14 | 14 | 19 | 23 | 19 | 25 | 27 | 23 | 27 | 29 | 24 | 26 | 29 | 24 | 25 | 27 | 23 |
min °C | 10 | 11 | 13 | 11 | 14 | 22 | 17 | 20 | 27 | 19 | 23 | 29 | 20 | 23 | 29 | 20 | 21 | 27 | 19 |
chill °C | 10 | 11 | 13 | 11 | 14 | 22 | 17 | 20 | 27 | 19 | 23 | 29 | 20 | 23 | 29 | 20 | 21 | 27 | 19 |
Freezing level m | 2350 | 2250 | 2450 | 2900 | 3500 | 3700 | 3900 | 3900 | 4150 | 4400 | 4550 | 4700 | 4700 | 4600 | 4700 | 4700 | 4700 | 4700 | 4500 |
 | — | 5:41 | — | — | 5:43 | — | — | 5:45 | — | — | 5:46 | — | — | 5:48 | — | — | 5:48 | — | — |
 | — | — | — | 8:44 | — | — | 8:43 | — | — | 8:40 | — | — | 8:39 | — | — | 8:37 | — | — | 8:37 |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: Light rain (total 6mm), mostly falling on Sun afternoon. Warm (max 27°C on Tue afternoon, min 10°C on Sat night). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Mostly dry. Warm (max 29°C on Wed afternoon, min 19°C on Tue night). Wind will be generally light.
This table gives the weather forecast for South Twin Sister at the specific elevation of 500 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of South Twin Sister. To see the weather forecasts for the other elevations, use the tab navigation above the table. For a wider overview of the weather, consult the Weather Map of Washington.
| Weather Station | Temp. | Weather | Wind | Gusts | Cloud / Visibility |
|---|---|---|---|---|---|
SHIP2565 | |||||
 | |||||
Bellingham Airport | | ||||
SHIP1671 | |||||
SHIP7772 | |||||
SHIP3195 | |||||
SHIP8646 | |||||
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* NOTE: not all weather observatories update at the same frequency which is the reason why some locations may show data from stations that are further away than known closer ones.